#zforum-menu ul li {
    display: inline;
    padding-left: 10px;
    padding-right: 10px;
    border-right: 1px solid #0000FF;
}

#zforum-menu ul li.zf-first {
    padding-left: 0;
}

#zforum-menu ul li.zf-last {
    border-right: 0;
    padding-right: 10px;
}

#zforum-menu ul li a.current {
    background: #999;
}